/* Copyright 2010 Marcel Overdijk
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.googlecode.janrain4j.conf;

/**
 * A class that holds a reference to the <code>Config</code>.
 * 
 * @author Marcel Overdijk
 * @since 1.0
 */
public class ConfigHolder {

    private static Config config = null;
    
    /**
     * Returns the <code>Config</code> instance.
     * 
     * @return A <code>Config</code> instance.
     */
    public static Config getConfig() {
        if (config == null) {
            setConfig(new PropertyConfig());
        }
        return config;
    }
    
    /**
     * Sets the <code>Config</code> instance.
     * 
     * @param config config The config.
     */
    public static synchronized void setConfig(Config config) {
        ConfigHolder.config = config;
    }
}
